Originally Posted by onenumcat

as I said, during the evolution of cannabis, the co2 levels are estimated at being 20% higher than present day. I know I am not producing 20% more co2, so there is little danger of overkill, in my situation. to answer yer question, I can't regulate it...just produce it. as to exhaustion...when there are no more bubbles, I assume there is no more production, flush that batch down the toilet and mix a new one. now I have 3 batches in different stages in the room. ventilation is provided by me, manually. I enter the room, open the door...about 6 ft/2 m wide, turn the fan on high, redirected out of the room, now it should be normal air in the room. when I close the door/exit the room, I reset everything and let it go.

I wish I could get the compressed co2 also, but I'm cheap and it may cause me difficulties with friends or in the community.

good luck with your grow, I'm sure it will be great with compressed co2!